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I installed Kettle's SiCCC rotors a few days ago on a cross bike (that I actually use as a winter road bike), and I'm happy to report that they work as well as the steel rotors I had before. Might be a good option for road disc.

I put a detailed review and pictures on my blog, but briefly make sure you follow the bed-in procedure properly! Without the bed-in procedure they only offer about 50% of the braking strength of a steel rotor, after the bed-in I got about 90%, and a few dozen miles after that they are indistinguishable from steel rotors.

I actually didn't buy the rotors because of the weight, I bought them in the hope that they'd reduce the screeching and chattering I'd get with steel rotors. They do: no squeaking, just a quiet sanding noise when I first apply the brakes. I wonder what's happening to my pads?

I also jumped on board during the original KickStarter project - whats that saying - 'fool me once, shame on me'? Really, I so wanted those rotors to work and gave Kettle the benefit of the doubt on multiple occasions. First was having to wait nearly 5-months past the promised shipping date for two sets of the 160mm, 6-bolt carbon rotors. Despite trying them in TRP Spyre mechanical as well as Shimano XTR hydros, for that first set of rotors, 3 of 4 were out of true, where thicker than the Ashima rotors they replaced. Worse yet, regardless of pads and bedding process, the rotors had next to no stopping power and screeched loud enough to wake the dead under the slightest amount of braking, wet or dry. The company re-tooled and offered two additional iterations, each promising more dramatic improvements in braking and even offered carbon pads. While most (myself included) found these additional iterations afforded improvements in braking, the squealing/screeching got worse, and while the rotors were lighter, braking was never near as good, nor as quiet or as with the Shimano IceTech rotors I now use. So while I think I binned them a month or so back, I probably have a stack of 8 of the 6-bolt, 160mm, carbon rotors in a box in the workshop!

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